- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 50/409 - Separators, membranes or diaphragms characterised by the material
Patent holdings for IPC class H01M 50/409
Total number of patents in this class: 552
10-year publication summary
|
4
|
14
|
52
|
31
|
164
|
98
|
47
|
49
|
34
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Contemporary Amperex Technology Co., Limited | 9961 |
51 |
| LG Energy Solution, Ltd. | 18906 |
38 |
| Zeon Corporation | 4147 |
36 |
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
17 |
| Sanyo Electric Co., Ltd. | 3407 |
16 |
| NGK Insulators, Ltd. | 5236 |
14 |
| Toray Industries, Inc. | 7113 |
14 |
| Asahi Kasei Kabushiki Kaisha | 2833 |
14 |
| LG Chem, Ltd. | 17921 |
13 |
| Murata Manufacturing Co., Ltd. | 25744 |
11 |
| Samsung Electronics Co., Ltd. | 157719 |
10 |
| Celgard, LLC | 311 |
9 |
| GS Yuasa International Ltd. | 2248 |
9 |
| Ningde Amperex Technology Limited | 2682 |
9 |
| Daramic, LLC | 221 |
8 |
| Teijin Limited | 1282 |
7 |
| Toyota Motor Corporation | 35772 |
6 |
| Apple Inc. | 58742 |
5 |
| Samsung SDI Co., Ltd. | 10589 |
5 |
| Shenzhen Senior Technology Material Co., LTD | 105 |
5 |
| Other owners | 255 |